Li'l Sparkies[1] are small sparks that travel along platforms, first appearing in Super Mario World. In later games, they seem to be almost completely replaced by Amps, an unlikely relative with similar traits and behavior. They are also similar to Sparks.

The Li'l Sparky (or Lil Sparky[2]) makes its debut here. They have the same immunities as Boos (i.e. invincible to almost everything). Additionally, larger ones (referred to as Hotheads) could be found in Bowser's Castle.

In Paper Mario, a Li'l Sparky named Watt was imprisoned and tortured by the Big Lantern Ghost. After Mario defeats the Lantern Ghost, Watt joins Mario's party, making her the first playable Li'l Sparky. Other members of her species may be contained in the lamps of the Lantern Ghost.